Quoting Gavin Spomer <[EMAIL PROTECTED]>:
Please forgive me if this is not the appropriate list to post this
on. If this is a topic for another, more appropriate FreeBSD list,
then would someone please kindly point this guy in the right
direction? :)
I'm on the security advisory list too and got 2 emails about patches
about a month ago. They came with instructions to follow for
patching... excellent! Then, the last step has a link to the FreeBSD
Handbook's Rebuilding world. Yes, I admit, it's taken me almost a
month to get the courage (and find the time) to do this. I'm usually
pretty fearless when exploring computer things. I don't really have
the best way to backup either. I finally just made tarballs of
important directories and scp'd them to one of my Linux machines. I
finally got to the point where I booted to single user mode (first
time for me) and that's where my problems began. It might be useful
to note on the instructions page that you don't have to type "boot
-s" to go into single user mode; it's easier to to just select option
#4.
First, let me note that step one in rebuilding world should be "cd
/usr/src", not "make buildworld". I guess I was supposed to know that
for some reason. Having said that, I figured I would also have to be
in /usr/src for the "make installworld" step. But I couldn't do that!
Why? I could cd to /usr, but not /usr/src!
So, I decided to go ahead and try the "mergemaster -p" step. I was
given an error that was something like "cannot find mergemaster". So
I thought that maybe in single user mode my $PATH isn't set, so I
thought about entering "/sbin/mergemaster -p", but I didn't know if
that was the path or not and I chickened out. :( Maybe the fact that
I hit Return to choose /bin/sh while going into single user mode
instead of my preferred bash had something to do with it?
Here's a slightly dumb question: when I get this all figured out, do
I have to start all over from "make buildworld" or can I just
continue with booting in single user mode and "mergemaster -p"? I'm
guessing I can just continue, but I thought it was important to ask.
Here's a little more intelligent question or two. ;) Is there a way
to do this while logged in via ssh? I don't mind making the trip to
our computer room so I can select #4 at the FreeBSD prompt, but it's
not all that convenient. Also, how long (in general) do the steps
"mergemaster -p" through the final reboot take? I am running FreeBSD
on a test server, but if I were to use it for my production servers
(which I am considering), the down-time of being in single user mode
would be a concern.
Thanks to everyone who takes the time to read this. :)
Greetings Gavin,
Yes, you're quite correct on all accounts. The doc's are a bit terse
in these areas. Which, as I read your email, reminds me why I _should_
send-pr a patch with some additional info in these areas. I guess I'm
like so many others - once I figured it all out, I got so involved
with it all, I completely forgot there was some issues with the docs.
NOTE: I'm not the author of the documentation. :)
OK I'm going to give you a "cheat sheet" that I hope you'll find
helpful in the future - be aware, this is NOT an excuse to ignore
the /usr/src/UPDATING file, as THAT document will QUITE likely
contain more timely information regarding little, but important
changes, that can make all the difference.
That said, here goes:
--------------------------------------------------------
* On an initial install ALWAYS buildworld BEFORE buildkernel
* Unless having troubles building a kernel, it is usually
best to ensure /etc/make.conf is empty
* If REbuilding world/kernel it is usually a good idea to
perform the following:
cd /usr/obj
chflags -R noschg *
rm -rf *
(see chflags(1) for more information)
--------------------------------------------------------
OK here we go:
cd /usr/src/sys/<ARCH>/conf
cp ./GENERIC ./YOUR_CHOSEN_NAME
edit ./YOUR_CHOSEN_NAME and adjust as necessary
cd /usr/src
make buildworld
* * * * OPTIONAL * * * *
NOTE: SINGLE CPU:
make -j4 buildworld
NOTE: MULTI CPU:
make -j(6 through 10) buildworld
* * * * * * * * * * * *
make buildkernel KERNCONF=YOUR_KERNEL_HERE
make installkernel KERNCONF=YOUR_KERNEL_HERE
reboot (in single user mode)
fsck -p (optional, but a good idea)
mount -u /
mount -a -t ufs
swapon -a (most cases; optional)
cd /usr/src
mergemaster -p
make installworld
mergemaster
reboot
That was simply a QUICK cheat sheet, and does not
replace good research. But I hope it helps. :)
--Chris
- Gavin
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